Centrifugal washing machine



May 19, 1925. I 1,537,995

A. F. MCNAUGHTON CENTRIFUGAL WASHING MACHINE Filed May 1, 1924 ,Patented May 19, 1925.

UNITED STATES VPATENTAOFFICE.

CENTRIFUGAL WASHING MACHINE.

Application filed May 1,

' NAUGHTON, a subject of the King of Great Britain, and a resident of the city of Toronto, in the county of York, in the Province'of Ontario, Canada, have invented certain new and useful Improvements in Centrifugal Washing Machines, of which thefollowing is the specification.

My invention relates to improvements in centrifugal washing machines, and the object of the invention is to devise means for providing a more eflicient circulation of the contained water passing from the centre of the machine to the periphery and fora free return of the water from the periphery to the centre, said circulation being performed completely within the body of the machine, thereby dispensing with the use of return pipes, and it consists essentially of the arrangement and construction of parts hereinafter more particularly described.

Fig. 1 is a sectional view through my machine.

Fig. 2 is a plan View, the parts thereof being broken away in section to exhibit the interior structure thereof.

In the drawings like characters of reference indicate corresponding parts in each figure. I

1 indicates the body or main container of my washing machine provided with a cencontainer 14 is provided with a central oritral opening 2 in the bottom wall thereof.

3 is an operating shaft journalled in. a vertical bearing member 4 secured within the orifice 2. j

5 is a plate which .is secured to the bottom of the container 1 and provided with a central orifice 6 through" which the lower end of the bearing support 4 extends. The bearing support 4 is provided with a flange 4 bearing against the inner face of the bottom wall of the container 1.

7 is a securing nut and 8 is a washer, the nut 7 being screwed on to the threaded lower end of the bearing support 4 so as to force the washer 8' against the plate 5 and the plate 5 against the bottom of the container 1, bringing the flange 4 into direct contact witlrth'e bottom of the container. By this means a water-tight joint is formed round the central orifice 2 of the container 1.

9 are .a plurality of stationary wall members contained withinthe main container 1 and set in a radial position to the centre of 1924. Serial no. 710,363.-

nassum the containerfthe inner end of each wall 9 being located intermediately between the' outer wall of the container and the centre thereof.

Each wall 9 is provided with a notched recess 9* for a purpose which will hereinafter appear, the outwardly extendin edges of the recess 9 being inclined outward as indicated at 9.

. 10 is an inner container the bottom in proximity to its outer peripheral edge being supported in the notched recess 9". The wall of the inner container 10 flares outward, as indicated at 10 to conform to the incline of the wall 9 of the recess 9*.

11 is an orifice formed in the centre of the inner container 10 round which extends an annular flange 12 forming an annular water containing space 13 extendin between the wall 12 and the bearing mem er 4.

The imier container 10' is supported in a stationary position upon the walls 9, and therefore forms a stationary unit with the maincontainer 1.

14 is a revolving water container .conforming in shape to the inner container 10, but of smaller diameter, and fitting therein to form a water containing interspace 15 between the side walls of the inner container 10 and revolving container 14 and also between the bottom of the container 10 and the bottom of the container 14. The revolving fice 16 in the bottom thereof,-into which the upwardly extending annular wall 12 of the inner container 10 extends.

17 is a cylindrical member extending upward from the orifice 16 and provided with a closed upper end 17 havin a central boss 18 provided with a centra orifice 19 in which is secured the upper end of the main shaft 3 by a pin 20. The wall of the c lindrical portion 17 is provided with PM ora- V container, such water 25 are ribs secured to the exterior of each member 23 and 24, the outer face of the ribs having inward inclination corresponding to the inclined inner surface of the container 14 so that when the member 23 is'set within the. revolving container 14, the ribs fit the inner periphery of the container 14 and tend to wedge downward so as to hold the member from rotating within such rotating container.

Similarly the rib 25 of the member 24 fits within the member 23 so as to prevent its revolving within, such member. It will also be. noted that the member 24 is of less depth than the member 23 for a purpose which will hereinafter appear.

Although I have shown two of these members it will of course be understood that any number may be employed.

26 is a discharge orifice provided with a plug 27 by means of which the water is discharged from the revolving container.

28 is a discharge pipe provided with a valve 29 for discharging the water from the main container 1.

Having discribed the principal parts of my invention I will briefly describe the operation of the same.

.The clothes are insertedwithin the wash-- ingmachine between the perforated wall of the cylindrical member 17 and the wall of the inner member 24, the clothes sinking down on to the bottom of the rotating water container 14. Water is fed by suitable means 'into the main container 1, the water passing upward and seeking its own level within the inner container 10 and rotating container 14. The shaft 3 is then driven by suitable means, rotating the container 14 with the clothes therein exerting a centrifugal action upon the water, causing it to pass upward over the convexed edge 22 and Ii 21 into the main eing replaced by water from the main container rising upward through the orifice 11 into the cylindrical member 17 and through the perforations into the revolving container.

The centrifugal action thus exerted is also aided by means of the members 23 and 24 and their inclined ribs 25 which engage the body of water within the revolving container 14 and serve to aid in throwing the water upward and over the lip 21.

, .By making the inner member 24 of less depth than the outer member 23 the water in the lower portion of the revolving container engages the outer wall thereof, passing up the inclined wall so as tobe engaged by the outer inclined ribs 25 and thus be thrown upward over the lip 21.

The waterwithin the revolving container 14 above the level of the lower edge of the member 23 is brought into contact as it is carried out by centrifugal action'with the lower ortion' of such wall, and is therefore carried up through the interspace between shaft.

its movement being aided by the ribs 25 located between these 'walls.

It will thus be seen that a complete circulation is formed, the water passing upward and outward from the revolving container and from the clothes over the lip 21 into the outer portion -'of the main container, gradually circulating downward between the Wall of the main container and the wall of the inner container 10 and returning between the bottom of the main container and the bottom of the inner container 10 so as to pass upward through the orifice 11 and through the perforations 17 of the cylindrical member 17 back into the revolving container 14 and into the body of the clothes contained therein.

From this description it will be seen that I have devised a very simple form of Washlng machine in which a very efficient circulation 18 provided for the water, both n an .inward and outward direction whereby the combination with an outer container and a central shaft journalled in the bottom of the container and extending upward thereinto, of an inner stationary container supported Within the outer container in a spaced apart position from the walls and bottom of the outer container and having a central orifice in the bottom thereof provided with a surrounding annular flange, a revolving container forming a clothes receptacle and supported within the inner container in spaced apart relation thereto and having an imperforate outer wall and a central orifice into which the aforesaid annular flange extends, and a perforated cylindrical portion extending upward from round the-central orifice of the revolving container and secured at its upperend {to the operating 2. In a centrifugal washing'machine, the

combination with an outer container and acentral shaft journalled in the .bottom of the container and. extending upward thereinto, of an inner container supported within the outer container ina spaced apart position y from the walls and bottom of the outer conpaced apart an annu ar dis upper edge of the revolving container over and adjacent to the upper edge of the inner container.

3. In a-centrifugal washing machine, the combination with'an outer container and a central shaft journalled in the bottom of the container and extending upward thereinto, of an inner container supported within the outer container in a spaced apart position from the walls and bottom of the outer container and having a central orifice in the bottom thereof provided with a surrounding annular flange, a revolving container form-' ing a clothes receptacle and sup orted within the inner container in space apart relation thereto and having an imperforate outer wall and a central orifice into which the aforesaid annular flange extends, a perforated cylindrical portion extending from the revolving container round the central orifice thereof and secured at its upper end to the operating shaft, and means located within the revolving container for increasing the centrifugal outward flow of the water over the upper edge of such-container when revolved.

4. In a centrifugal washing machine, the

combination with an outer container and a central shaft journalled in the bottom of the container and extending upward thereinto, of an inner container supported within the outer container in a spaced apart position I from the walls and bottom of the outer container and having a central orifice in the bottom thereof provided with a surrounding annular flange, a revolving container forming a clothes receptacle and supported within the inner container in spaced apart relation thereto and having an imperforate outer wall and a central orifice into which the aforesaid annular flange extends, a perforated cylindrical portion extending from the revolving container round the central orifice thereof and secured at its upper end to the operating shaft, and an annular wall member supported within the rotating container in spaced apart relation to the wall thereof and upwardly extending ribs located in the interspace formed ,between such wall member and the wall of the rotating container.

5. In a centrifugal washing machine, the combination with an outer container and a central shaft. 'ournalled in the'bottom of the container an extending upward thereinto, of an inner container supported within the outer container in a spaced apart position from the walls and bottom of the outer container and having a central orifice in thebottom thereof provided with a. surrounding annular flange a revolvin container forming a clothes receptacle an supported within the inner container in spaced apart relation thereto and having an imperforate ALLAN FRASER MGNAUGHTON. 

